Title :
40 Gb/s differential traveling wave modulator driver
Author :
Radisic, Vesna ; Yu, Mark ; Lao, Zhihao ; Ho, Vincent ; Xu, Muliang ; Guinn, Keith ; Lee, Shing ; Wang, K.C.
Author_Institution :
OpNext Inc., Thousand Oaks, CA, USA
Abstract :
In this letter a MMIC differential traveling wave driver for 40 Gb/s electro-absorption modulation driver is presented. The driver delivers 2.7 Vp-p or 2.4 V eye amplitude at each output into 50 /spl Omega/ load. The driver has high gain (>20 dB), a 3 dB bandwidth of 45 GHz, and rise/fall times of only 10/9 ps, respectively. The circuit uses a single -5.0 V power supply and consumes 1.8 W of dc power. The driver also features cross-point control and output amplitude control functions.
Keywords :
MMIC amplifiers; S-parameters; bipolar MMIC; differential amplifiers; driver circuits; electro-optical modulation; electroabsorption; microwave photonics; travelling wave amplifiers; 40 Gbit/s; 45 GHz; MMIC differential traveling wave driver; S-parameters; coupled microstrip lines; cross-point control; differential traveling wave amplifier; electroabsorption modulation driver; high gain; lumped-element differential predriver; one chip MMIC; output amplitude control; output eye amplitude; Bandwidth; Breakdown voltage; Coupling circuits; Cutoff frequency; Diodes; Driver circuits; Germanium silicon alloys; MMICs; Power supplies; Silicon germanium;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2003.815688
